Where does “fibromyocyte” come from?

fibromyocyte (English) comes from English myocyte, from English myo-, from Ancient Greek μῦς, from Proto-Hellenic *mū́s, from Proto-Indo-Iranian múHs, from Proto-Indo-European múh₂s — mouse.

Ancestry of “fibromyocyte”, step by step

fibromyocyte traces back through two separate lines of ancestry.

via English myocyte

StepLanguageWordMeaning
1Englishmyocytea single muscle fiber cell
2Englishmyo-muscle
3Ancient Greekμῦςmouse; A type of mussel; A type of whale
4Proto-Hellenic*mū́s
5Proto-Indo-IranianmúHsmouse
6Proto-Indo-Europeanmúh₂smouse

via English fibro

StepLanguageWordMeaning
1EnglishfibroFibro-cement; a building material consisting of...
Every word from Proto-Indo-European múh₂sEvery word from Proto-Indo-Iranian múHsEvery word from Proto-Hellenic *mū́s